2009年8月17日 星期一

Hyphessobrycon pando - 產自玻利維亞的新種脂鯉

文獻來源: Hein G. 2008[2009]. Hyphessobrycon pando sp. n., a new rosy tetra from northern Bolivia (Teleostei, Characiformes, Characidae). Bulletin of Fish Biology 10(1/2): 1-10.

Abstract
A new characid fish, Hyphessobrycon pando sp. n., from northern Bolivia, departmento Pando, is described. Having a red body colour, a distinct humeral spot and a characteristic black dorsal spot this species apparently belongs to the putative rosy tetra clade introduced by WEITZMAN & PALMER (1997). Hyphessobrycon pando sp. n. is distinguished from H. eques by the following characters: maxillary with six to eight (rarely five) conical to tricuspid teeth. The teeth of the premaxillary are solely conical to tricuspid as well. The dark margin of the anal fin is much less pronounced and does not reach the caudal base of the anal fin. The black dorsal spot often ends medially in a rounded tip and, at the posterior rays, is clearly separated from the base of the fin. The humeral spot is anterior and posterior margined by light zones. From all species of the extended Hyphessobrycon bentosi-group the new species is distinguished by the characteristically black humeral spot with light zones and the short dorsal fin of the male.